Callistemon acuminatus Cheel Melaleuca flammea, commonly known as tapering-leaved bottlebrush,[2] is a plant in the myrtle family, Myrtaceae and is endemic to New South Wales and Queensland in Australia.

[5][6] It had first been formally described as Callistemon acuminatus by Edwin Cheel in 1911 in Illustrations of New South Wales Plants from a specimen collected "on slopes of rocky mountains, Crawford River, 7 miles (10km) from Bullahdelah.

[3]The Australian Plant Census accepts the name Callistemon acuminatus but it is regarded as a synonym of Melaleuca flammea by the Royal Botanic Gardens, Kew.

It usually grows in woodland or forest on dry, rocky hilltops[3][2] Melaleuca flammea, as Callistemon acuminatus, is a classified in New South Wales as a "Rare or Threatened Australian Plant".

[4] Although not common in cultivation, this species is hardy, frost and drought tolerant and its distinctive leaves and large, brightly coloured flowers give it horticultural potential.